The invention relates to a nuclear shell type long-acting antibacterial
emulsion. The nuclear shell type long-acting antibacterial
emulsion comprises the following
raw material components: water, n-
butyl acrylate, isobutyl
acrylate,
isooctyl acrylate,
styrene,
methyl methacrylate,
vinyl acetate, guanidinium
oligomer macromonomers, an emulsifying agent, an initiating agent, a cross-linking agent and
sodium bicarbonate. The preparation method comprises the following steps: preparing each
raw material component; adding water, the emulsifying agent and
isooctyl acrylate into a reactor, stirring, heating to 60-70 DEG C, adding the initiating agent to initiate reaction, and after the
emulsion becomes blue, maintaining for 60-120 minutes, so as to obtain a nuclear layer emulsion; maintaining the temperature at 70-80 DEG C, adding n-
butyl acrylate, heating to 81-85 DEG C, maintaining the temperature, cooling, and discharging, so as to obtain the nuclear shell type long-acting antibacterial emulsion. According to the preparation method, guanidinium and guazatine oligomers are taken as antibacterial functional groups, and guanidyl serves as a main
antimicrobial group, has an obvious
antibacterial effect and is very safe to human bodies. The preparation method for the nuclear shell type long-acting antibacterial emulsion is simple, rapid,
environmentally friendly and suitable for industrial production, and the operation is easy.